CVS commit: [netbsd-10] src/sys/arch/x86/pci

["Martin Husemann" <martin%netbsd.org@localhost>]

Module Name:    src
Committed By:   martin
Date:           Fri May 16 05:16:41 UTC 2025

Modified Files:
        src/sys/arch/x86/pci [netbsd-10]: pci_machdep.c

Log Message:
Pull up following revision(s) (requested by manu in ticket #1120):

        sys/arch/x86/pci/pci_machdep.c: revision 1.99 (via patch)

Search host bridge on all devices from PCI bus 0

We look for host bridge MSI capability to enable MSI on PCI devices,
which require locating the host bridge itself. Previously we assumed
it was on bus 0, device 0, but that assmption misses some setups.

For instance, Dell Poweredge r760xd2 has its host bridge on bus 0,
device 20, function 4.

This change iterates on all devices on bus 0 to find the host bridge.


To generate a diff of this commit:
cvs rdiff -u -r1.93.4.4 -r1.93.4.5 src/sys/arch/x86/pci/pci_machdep.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.